a,b = map(int,input().split())

def nabeatu(i):
    if i%3 == 0:
        print(i)
        return 0
    else:
        while i!=0:
            if i%10==3:
                print(i)
                return 0
            i = i//10

for i in range(a,b+1):
    nabeatu(i)